Trolley-wire cut-out switch



' j? Pabo if@ k 717 .June 26, 1923. Y 1,460,288

T. A. THOMAS TROLLEY WIRE CUT-OUT SWITCH Filed July l5 1921 j? zo 2 25 Patented lune 2li, i923.

llytltdddtl THOMAS A. THOMAS, OF AMHERSTDALE, "WEST VIRG'NA.

TROLLEY-WIRE CUT-OUT SWTCH.

Application filed July 15,

To all whom t may concern:

Be it known that THOMAS A. THOMAS, a citizen of the United States of America, re siding at Amherstdale, in the county of Logan and State of lVest Virginia, has in vented new and useful Improvements in Trolley-l/Vi1e CutOut Switches, of which the following is a specification.

The object of the invention is to provide a simple and eliicient cut-out switch lor trolley wires used in mines and overhead lines having means for eii'ecting an opening of the circuit without the rislr incident to arcing and burning and also adapted as a means of taking up slack to insure a properly taut condition of the trolley wires; and with this object in view the invention consists in a construction and combination of parts of which a preferred embodiment is shown in the accompanying drawings, wherein Figure 1 is a side view of a cut-out switch embodying the invention.

Figure 2 is a longitudinal sectional view of' the same.

Figure Sis a plan view.

Figure t is a reverse plan view.

Figure 5 is a transverse section on the line 5-5 of Figure 1.

rllhe device consists essentially of a body portion 10 of hard wood or its equivalent having in connection therewith the metallic terminals 11 and 12, preferably oi brass or like material of which the extremities 13 and 14 are provided with sockets 15 for the reception of the extremities of the trolley wire elements 16, wedges 17 being employed for securing the wire ends in the sockets.

The terminals have sleeves 11a and 12 which receive the ends oi"- the block forming the body portion 10, the sleeve 11a preferably being secured rigidly to the block by means of bolts 18, and the sleeve 122L being' freeto slide upon the block to vary the interval between the terminals to suit the condition of the trolley wire of which the extremities are connected therewith, a screw bolt 19"L being arranged longitudinally of the body portion of the device and serving as a means of eliecting the desired relative adjustment of the terminals and of securing the same with the conductor wire at the desired tension.

One of the terminals as for example the member 11 is provided with a libre eXtension forming a tongue 19 fitted in a guide 20 in the terminal 12 constituting a bridge between the ribs 11b and 12b to-be traversed by the trolley wheel in its passage from one 1921. Serial NO. Gilat-i60.

trolley wire section to the other, and the movable sleeve 12a is preferably provided with longitudinally inwardly directed ribs 21 operating in grooves 22 in the opposite side surfaces of the block forming the body portion 10.

The means of suspension of the device may consist as illustrated in the drawing of a hanger plate 23 secured to the block and having a slot 211 with which is engaged a bolt 25.

The connection between the terminals is effected by a switch 26 pivoted as at 27 on the block for engagement with the contacts 28 and 29 on the terminals and serving to maintain the electrical connection between said terminals. The turning of the` switch to break the circuit serves to open the same at both ends simultaneously to avoid making an are and burning the 'terminals ci the cut-out.

Having described the invention, what claimed as new and useful is 1. A cut-out switchfor trolley lines hav.- ing a body portion consisting of a block ot insulating material, terminals carried by said block and provided with means for connection with the adjacent extremities ot trolley wire sections, and a switch mounted upon the body portion for simultaneous engagement at itsfextremities Vwith. contacts on said terminals, one of said terminals being longitudinally movable on the bloclr relative to the other terminal and means for securing the same in its adjusted positions.

2. A cutout switch lor trolley lines having a body portion consisting of a block of insulating material, terminals carried by said block and provided with means for connection with the adjacent extremities oit trolley wire sections, and a switch mounted upon the body portion for simultaneous engagement at its extremities with contacts on said terminals, said terminals havingV sleeves litted upon the bloclr, one of the sleeves being slidingly mounted, and a bolt extended through the block for securing the movable sleeve in adjusted positions.

3. A cut-out switch for trolley lines having a body j aortion consisting ot a block ot insulating material, terminals carried by said block and provided with means for con-l nection with the adjacent extremities et trolley vwire sections, and a switch mounted upon the body portion for simultaneous engagement at its extremities with contacts on seid terminals, said terminals being pro- 10 tion and provided with ineens for connection with the adjacent extremities oftrolley Wire sections, means for. adjusting said terminals toward each other to tension they conneeted trolley Wire sections, and a switch for electrically connecting and disconnecting said terminals.

ln testimony whereof he etlxes his signature.

THOMAS A. THOMAS. 

